body {
    background-color: #f8f9fa;
    font-family: 'Helvetica Neue', Arial, sans-serif;
}

.card {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    margin-bottom: 1.5rem;
}

.card-header {
    background-color: #f1f8ff;
    font-weight: 500;
}

.nav-tabs .nav-link {
    font-weight: 500;
    color: #495057;
}

.nav-tabs .nav-link.active {
    font-weight: 600;
    color: #007bff;
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0, 123, 255, 0.05);
}

.echarts-tooltip {
    background-color: rgba(50, 50, 50, 0.9) !important;
    border: 1px solid #666;
    border-radius: 4px;
    color: #fff;
    padding: 10px;
    box-shadow: 0 3px 5px rgba(0, 0, 0, 0.2);
}

.stats-highlight {
    background-color: #e8f4ff;
    border-left: 3px solid #007bff;
    padding: 10px 15px;
    margin-bottom: 15px;
    border-radius: 0 4px 4px 0;
}

@media (max-width: 768px) {
    .card-title {
        font-size: 1.1rem;
    }
} 